PSA Sabre-15 Ambi Lower Receiver: $99.99, 6 Finishes, Live

Palmetto State Armory's Sabre-15 Ambi Lower Receiver went live on Friday, August 14, 2026, at $99.99 in black anodized and $119.99 in each of five Cerakote colors. It takes the factory-installed ambidextrous bolt catch and release from the Sabre-15 Enhanced receiver set and puts it on a stripped 7075-T6 AR-15 lower. PSA product manager Cameron framed it as a direct response to demand after the Enhanced launch: builders wanted the ambi bolt release without the flared magwell and integral trigger guard that came with it.

The launch graphic read "Sabre Ambi Mil-Spec Receiver Sets," but the SKUs that went up are lowers sold on their own. PSA's listing calls it the Sabre-15 Ambidextrous Stripped Lower Receiver, with the ambi bolt catch as the only pre-installed part, and there is no matching Sabre-15 Ambi upper. That matters to the shopping list: the lower parts kit, trigger, grip, receiver extension, and stock are all still yours to buy.

The pre-installed ambidextrous bolt catch and release is the only ambi control on this receiver. A paddle on the right side of the lower lets the trigger hand lock the bolt to the rear and drop it without rolling the rifle or breaking the firing grip. That is the single control most AR builders add aftermarket. The bolt-on answers are the Magpul B.A.D. Lever at $29.95, which hangs a paddle off the standard catch, and the Battle Arms BAD-EBC kit at $53.99, which swaps in a matched enhanced catch plus a right-side lever. Getting the function from the receiver means one less part to buy, install, and index.

What it does not include: an ambidextrous magazine release or an ambidextrous safety selector. A genuinely ambidextrous rifle needs all three, and both of the missing pieces are cheap drop-in parts you can add later. Our full ambi controls conversion guide covers the selector and magazine release swaps, and the ranked ambi lower receivers guide compares the fully mirrored ADM, LMT, and Radian receivers that build all three controls into the casting.

PSA stated in the announcement that this is not a mil-spec bolt catch and that some rifles will need tuning because of it. If a rifle fails to lock back on an empty magazine, PSA's fix is to close down an adjustable gas block if the build has one, or to step up in buffer weight if it does not.

Both remedies do the same thing: slow the bolt carrier down. Lock back on empty depends on the magazine follower driving the bolt catch up into the path of the bolt before the bolt gets there. An overgassed carbine cycles fast enough to beat the follower, and a bolt catch with non-standard geometry narrows that timing window further. Moving from a carbine buffer to an H or H2, or closing an adjustable block a few clicks, restores it. This is worth knowing before you build: if the rifle this lower is going into already runs hot, budget for a heavier buffer in the same order.

The Sabre-15 Ambi lower comes in six finishes: Black anodized, plus Burnt Bronze, Blue Titanium, Flat Dark Earth, Moss Green, and Champagne Cerakote. That is the same palette PSA used on the Sabre-15 Enhanced set, so a builder running a matched Sabre color across two rifles can keep them consistent.

Black anodized is the only non-Cerakote option in the group, and it is the cheap one: $99.99 against $119.99 for any of the five colors. It is also the finish that will match a parts-bin upper and standard black furniture without a color conversation. Going Cerakote on a stripped lower means committing to sourcing an upper in the same PSA color, because a separately-sprayed pair rarely tones to each other.

Both carry the same factory-installed ambi bolt catch and release, so the split is what comes around it and what it costs. The Sabre-15 Enhanced is a matched upper-and-lower set at $249.99 that adds a flared magwell, a trigger guard machined into the receiver, and a threaded set screw in place of the bolt-catch roll pin so the catch detail-strips with an Allen key instead of a punch. The Sabre-15 Ambi lower drops all three, drops the upper, and keeps the conventional AR-15 receiver profile for $150 less.

Watch the name when you shop, because PSA sells a third ambi Sabre-15 receiver product, and on this one the ambi function is not the same. The Sabre-15 Billet Ambi-Receiver Set is a separate, older line at $269.99, CNC machined from billet rather than forged, and it adds an upper tensioning set screw, a trigger reset set screw, and a threaded takedown spring hole. Its spec sheet lists an ambidextrous bolt catch, but the answered question on PSA's own product page says the paddle is bolt release only, with no right-side hold-open. If locking the bolt back from the firing hand is why you are shopping ambi, that is the set to skip.

Pick the stripped lower if you already have an upper, if you want a clean classic receiver, or if a flared magwell would fight a magwell grip or a magwell-mounted accessory. Pick the Enhanced set if you are starting from nothing and the flare and the punch-free bolt catch are worth the styling. The rest of the Sabre lineup, including the complete rifles, is broken out in our PSA Sabre line guide, and our coverage of the Enhanced and IC receiver sets has the full feature breakdown.

This is a base for a build, not an upgrade to an existing rifle. A stripped lower is the first purchase in a from-scratch AR-15, and it is the one that goes through an FFL. The conventional receiver profile is the point of this one: the parts list downstream is the ordinary AR-15 parts list, with the ambi bolt release already crossed off it and roughly $30 to $60 of aftermarket ambi bolt-catch hardware saved.

If you are cross-shopping receivers rather than committed to the Sabre finish options, our ranked AR-15 lower receiver guide covers the Aero, BCM, and Geissele options at each price band. You can also spec the rest of the rifle around it in our rifle builder to see what the complete build costs once the lower is in hand.